Yarn spool



Aug. 29, 1933. E. F. HATHAWAY Er Al.i 1,924,929

YARN sPooL Filed May 14, 1951 2 Sheets-Sheet l E. F. HATHAWAY Er AL 1,924,929

YARN SPOOL Aug. 29, 1933.

Filed May 14, 1951 2 Sheets-Sheet 2 lINVEA/Tolz Patented Aug. 29, 1933 PATENT QFFCE YARN SPOOL Edgar F. Hathaway, Wellesley, and Walter Bixby,

Boston, Mass.

Application May 14, 1931.

3 Claims.

This invention relates to yarn spool construction, and is particularly intended to provide a simple, economical and reliable means of rotatably supporting the yarn spool, especially a sec- 5 tional yarn spool, in suitable bearings and is especially applicable to service Where it is desired that the sections oi the spool, which rotate in unison, have the end heads of the section separated from each other by only a small intervening space sucient to receive a narrow intermediate bearing bracket or stand as in the case of an Axminster tube frame spool.

To this end the invention embraces a sectional n spool, Whose sections are placed in coaxial alignment end to end for rotatablesupport in suitable end brackets and intermediate brackets, a supporting gudgeon being employed to have proper bearing support in the intermediate bracketvvhile rotatively interlocking the adjacent ends of the spool sections together to cause them to rotate in unison as the yarn tufts or ends are unwound from the spool sections for delivery to the loom. This and other features of the invention will be fully described in the following specication and will be defined in the claims hereto annexed.

' the accompanying drawings is illustrated tivo of the forms under which the principles of this invention may be embodied, in Which Fig. 1 is a iront elevation, partly in section, or

a tube frame of Well known type in Which is mounted a sectional spool embodying the principles of this invention.

Fig. 2 is a detail View showing principally in 35 central section one end head of one of the spool sections.

Fig. 3 is an end elevation of the head shown in Fig. 2.

4 is a central vertical section of the complementary end head of the next adjacent spool.

Fig. 5A is an endelevation or" the spool head shown in 1Eig. 4.

Fig. 6 is a detail View showing one of the end journals and its ejecting spring separated therefrom.

Y Fig. 7 is a detail View, principally in central section, showing the construction of the intermediate bearing.

Fig. 8 is a side elevation of the bearing bracket shown in Fig. 7.

Fig. 9 is a front elevation of a modied form oi tube frame spool, parts of the spool being shown in vertical central section.

Fig. 1i) is a detail view of the inodication, showing one end oi one of the spool sections, chieiiy in central Vertical section.

Cil

Serial N0. 537,304

Fig. 1l is a side elevation of the head shown in Fig. 10.

Fig. 12 is a detail View of one of the interlocking sectional gudgeons on a vertical central section thereof shown in Fig. 10.

To illustrate the construction and mode of use of this invention according to its practice in the form shown in Fig. l, there is illustrated a substantially complete tube frame oi well known construction comprising a longitudinal carrier bar 1, to opposite ends of which are secured Well known types of chain-engaging suspension brackets 2 each provided with an upstanding bearing extension or ear 4 provided with a bearing opening for the reception and support of the end supporting journal or the adjacent spool section. On the iront face oi the carrier bar l is secured a rou1 of side by side parallel tutt-receiving and guiding tubes 3. y

The spool section comprises a tubular barrel to which is secured the end head 6 in any suitable manner, as by means of an annular connecting ilange at 6b. The end head usually has an annular flange S'LL at its periphery. Inside the end head is secured in any suitable manner a reeniorcing disc 8, Whose middle or central portion is struck outwardly to form a bearing hub Sa in which is inserted and secured a bearing bushing 9 for the support of the outer end of the bearing pintle or journal 12. Before the reeniorcing plate S is secured in place, a smaller disc is forced into the interior oi the flanged portion Sb of the head 6 and is rmly secured there by soldering or Welding operations. A helical or spiral compression spring 13 is inserted between the disc 10 and the shoulder member of the pintle 12 to normally thrust the pintle outward into its supporting bearing, While vallowing it to be pushed inward Afor removal from the bearing when it is desired to remove'the spool from its support.

A similar end head '7 is secured by a flanged connection 7b with the opposite end oi the spool barrel 5. On the outer face of this end head is secured a reenforcing disc or plate 17, which extends straight across the open end of the spool and is provided with a central perforation adapted to receive a reduced shank portion a of a bearing gudgeon 2i) for revolubly supporting the adjacent ends of both spool sections and rotatably coupling them together. The projecting end of this bearing gudgeon, forming a support for both adjacent spool ends, is in the form of a narrow cylindrical bearing meniber 20b and a polygonal head, Whose corners are in registry with the cylindrical bearing member 2Gb. For convenience in manufacture, the cylindrical bearing portion of this gudgeon may be in the form of a washer or ring slipped over the reduced shank member 20e.

'I'he adjacent spool section head 7 is provided with a reenforcing disc 17a, whose central area is punched out or perforated to form a polygonal hole into which the polygonal extension of the bearing gudgeon 20 projects. This construction permits the use of a very narrow intermediate bearing for supporting the adjacent ends of two spool sections, since the gudgeon projects from one section a substantial distance through the end plate into the adjacent section, and there is no danger of displacement of such a gudgeon from a narrow bearing in contradistinction to the construction heretofore commonly used, in which each of the adjacent spool sections are provided with short independent gudgeons whose end faces abut against each other, which requires a supporting bearing of considerable width. Consequently, in this case the intermediate bearing bracket may be made of sheet metal plates 22 secured together face to face and having right angle feet 22a for attaching them to the top face of the carrier bar. At a point in line with the central axis of the spool sections, this intermediate bracket is perforated to receive a narrow bearing bushing 23, whose opposite peripheral edges are upset, or headed down, after the fashion of a rivet to secure the two upright plates together and afford a suitable bearing for the cylindrical member 20b of the gudgeon. It will therefore be seen that the gudgeon forms a common support for revolubly supporting both spool sections and at the same time, through its being fastened to one spool section and having interlocking engagement with the other spool section, equal rotation of the two spool sections in unison is secured.

The advantage of this narrow bearing construction is that the spool heads can be brought very close together and, consequently, there is very little deflection of the yarn tuft elements that are wound close against the spool head and that have to pass through the two tuft tubes 3 on either side of the medial plane of the bearing bracket between the spool sections. As shown in the drawings, this deflection is so slight as to prevent injurious rubbing of the spool head against the yarn elements passing into these two middle tubes and, furthermore prevents chaifing of these yarn elements against the thin end. edges of the said tuft tubes, which is a decided advantage in the operation of a tube frame.

As shown in Fig, 9 this gudgeon, having attachment to one of the spool section ends and projecting through the bearing into the other spool section, may be made in sections -or halves. In this case the supporting and interlocking gudgeon is formed in two sections, each being substantially semi-circular in contour and each being secured to one spool section to project through the bea-ring into the interior of the adjacent spool section. A simple and economical form of this sectional gudgeon construction, shown in Figs. 9 to 12 inclusive, comprises a sheet metal member 25 pressed into a semi-cylindrical shape with an outwardly projecting attaching iiange 25a and a transverse end member 25h. In each case the sectional gudgeon member is inserted through an aperture in its supporting spool head member 18 with its semi-cylindrical surface fitted snugly into the corresponding portion of the aperture, so that its attaching flange 25a overlaps the inside edge of the aperture in the disc 18. The members are so proportioned in relation to the whole circular aperture that the plane of the inner edge of the gudgeon member coincides not only with the diametrical chord of the aperture in which it is inserted, but also with the diametrical plane of the spool. The companion section of the gudgeon is secured in similar fashion to the adjacent end of the next spool section and projects through the bearing bracket into the interior of the spool section to which the other member is fastened.

In this case both plates 18 are provided with circular gudgeon-receiving apertures, one-half of each of which is occupied by an attached gudgeon section adapted to project through the opposed half of the aperture in the adjacent section. The two flat or chord faces, or edges, of these gudgeon sections form an interlocking engagement with each other that necessitates the rotation of both spool sections in unison. One advantage of this sectional construction of the gudgeon, whether made -of sheet metal or otherwise, is that both spool sections are of identical construction, thus readily permitting substitution or reversal. This construction equally with the form shown in Fig. 1 serves to provide a common support for revolubly carrying two end spools and permits the use of a very narrow intermediate bracket without danger of the gudgeon accidentally falling out of 105 its bearing with slight longitudinal play, which 1s usually permitted these spools.

A somewhat different form of intermediate bracket is shown in this case, although any suitable form of intermediate bracket may be used. 110 The form shown comprises two side by side sheet metal plates or strips 26 mounted on a common pivot member 27 supported in bearing ears 28 attached to the carrier bar and having their central areas perforated to form cylindrical openings, the 115 edges of which, as shown at 26a, are turned slightly outward to slightly increase the width of the bearing portion which receives the sectional gudgeon and forms a support therefor.

What we claim is:

1. A yarn spool embracing in its construction, two coaxially aligned spool sections, an interposed bearing bracket provided with a bearing opening concentric with the axis -of revolution of said spool sections, and a two-part bearing gudgeon each part projected from the end of one spool section into the interior of the other spool section through said bearing aperture in mutually lengthwise overlapping relation, the two members of the gudgeon forming a cylindrical bearing support fitting into said bearing opening and revolubly supporting both spool sections.

2. A yarn spool embracing in its construction, two separate spool sections arranged in coaxial alignment with each other associated with an interposed bearing bracket provided with a circular bearing opening, a two-part supporting gudgeon rotatably mounted in said bearing opening and divided from each other on a diametrical plane coinciding with a diametrical plane of said spool sections, each gudgeon member being secured to the end of one spool in position to occupy one-half of said bearing opening and extending into the interior of the adjacent end of the other spool 145 whereby they form a rotatable support for the adjacent ends of both spool sections and by their mutual engagement with each other on a diametrical plane cause both sections to rotate in unison when either is rotated.

3. A gudgeon construction for coupling together coaxially disposed sections of a revoluble spool embracing, two semi-cylindrical members, each provided at one end with a peripherally projecting attaching ilange secured t-o the edge of a circular containing opening so as to lie on one side of the diametrical plane of said opening and pro- 

